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IntlChar::isIDPart
(PHP 7)
IntlChar::isIDPart — Check if code point is permissible in an identifier
Description
Determines if the specified character is permissible in an identifier.
TRUE
for characters with general categories "L" (letters), "Nl" (letter numbers), "Nd" (decimal digits),
"Mc" and "Mn" (combining marks), "Pc" (connecting punctuation), and u_isIDIgnorable(c).
Note:
This is almost the same as Unicode's ID_Continue (
IntlChar::PROPERTY_ID_CONTINUE
) except that Unicode recommends to ignore Cf which is less than IntlChar::isIDIgnorable().
Parameters
Examples
Example #1 Testing different code points
<?php
var_dump(IntlChar::isIDPart("A"));
var_dump(IntlChar::isIDPart("$"));
var_dump(IntlChar::isIDPart("\n"));
var_dump(IntlChar::isIDPart("\u{2603}"));
?>
The above example will output:
bool(true) bool(false) bool(false) bool(false)
See Also
- IntlChar::isIDIgnorable() - Check if code point is an ignorable character
- IntlChar::isIDStart() - Check if code point is permissible as the first character in an identifier
IntlChar::PROPERTY_ID_CONTINUE
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Steph